Form 13-F position report

CALIX INC

Reported by Atika Capital Management LLC

CALX CUSIP 13100M509 Manager CIK 0001599731

Reported 252,900 shares, down 155,600 (38.1%) from the prior quarter.

Reported value -42.3%; share count -38.1% vs. the prior quarter.

Reduced
% of reported 13F value 1.26% This manager · Q2 2023
Shares 252,900 Quarter-end amount reported
Reported value $12,622,238 Fair value at quarter end
Consecutive quarters held 8 Through Q2 2023

Reported position value by quarter

Reported position value by quarter

Each bar is a Form 13-F quarter-end snapshot. It does not show trades made within the quarter.

Reported position value by quarter
Date Holding Value
2021-09-30 14857000
2021-12-31 34619000
2022-03-31 21369000
2022-06-30 17924000
2022-09-30 48918000
2022-12-31 44901919
2023-03-31 21891515
2023-06-30 12622238
2023-09-30 3300480
2023-12-31 5024350
2024-03-31 0
2025-09-30 5492615
2025-12-31 0

Quarterly position history

How this manager's reported quarter-end position changed over time.

13 quarters
Quarterly reported position history for CALIX INC held by Atika Capital Management LLC.
Quarter Activity Shares Change % of reported 13F Reported value Filed Source filing
Q4 2025 Reduced 0 -89,500 (-100.0%) 0 $0 2026-02-13
Q3 2025 New 89,500 +89,500 (0.0%) 0.44% $5,492,615 2025-11-13
Q1 2024 Reduced 0 -115,000 (-100.0%) 0 $0 2024-05-14
Q4 2023 Added 115,000 +43,000 (59.7%) 0.67% $5,024,350 2024-02-13
Q3 2023 Reduced 72,000 -180,900 (-71.5%) 0.43% $3,300,480 2023-11-13
Q2 2023 Reduced 252,900 -155,600 (-38.1%) 1.26% $12,622,238 2023-08-11
Q1 2023 Reduced 408,500 -247,673 (-37.7%) 3.23% $21,891,515 2023-05-12
Q4 2022 Reduced 656,173 -143,927 (-18.0%) 6.46% $44,901,919 2023-02-13
Q3 2022 Added 800,100 +275,100 (52.4%) 4.15% $48,918,000 2022-11-14
Q2 2022 Added 525,000 +27,000 (5.4%) 2.01% $17,924,000 2022-08-12
Q1 2022 Added 498,000 +65,100 (15.0%) 1.8% $21,369,000 2022-05-13
Q4 2021 Added 432,900 +132,340 (44.0%) 2.43% $34,619,000 2022-02-11
Q3 2021 New 300,560 +300,560 (0.0%) 0.88% $14,857,000 2021-11-12
Five years are shown. A free account unlocks the complete reported history. Unlock full history

Who else reported the position

307 managers reported CALIX INC for Q2 2023.

Managers reporting CALIX INC in Q2 2023.
Manager Activity Shares Change % of reported 13F Reported value Tenure
BlackRock Inc Added 8,082,716 +195,858 0.01% $403,408,356 41 qtrs
VANGUARD GROUP INC Added 6,066,569 +327,341 < 0.01% $302,782,459 41 qtrs
STATE STREET CORPORATION Added 1,928,673 +18,245 < 0.01% $96,260,069 41 qtrs
ALLIANCEBERNSTEIN L P Reduced 1,874,552 -279,043 0.04% $93,558,890 25 qtrs
GILDER GAGNON HOWE & CO LLC Reduced 1,834,294 -326,081 1.25% $91,549,608 19 qtrs
DIMENSIONAL FUND ADVISORS LP Reduced 1,644,692 -10,396 0.03% $82,088,229 41 qtrs
THE BANK OF NEW YORK MELLON CORPORATION Reduced 1,347,966 -60,001 0.01% $67,276,961 41 qtrs
WELLINGTON MANAGEMENT GROUP LLP Added 1,275,422 +147,409 0.01% $63,656,312 20 qtrs
AMERIPRISE FINANCIAL INC Added 1,239,948 +91,541 0.02% $61,885,805 10 qtrs
Thrivent Financial for Lutherans Added 1,232,452 +471,919 0.14% $61,512,000 10 qtrs
Premium adds each manager's conviction percentile across reporting peers.
Filing details and methodology As reported
Report period
June 30, 2023
Filed
August 11, 2023
Filing type
13F-HR
Position type
COM

Voting authority reported

Sole
252,900
Shared
0
None
0

“None” means the manager reported no voting authority for those shares on non-routine matters. It does not disclose why and is not evidence of securities lending.

Form 13-F is a delayed quarter-end snapshot of disclosed long Section 13(f) securities. It can be filed up to 45 days after quarter end, excludes short positions and most non-U.S. securities, and does not reveal intra-quarter trading. For options, reported shares and value describe the underlying-share exposure; strike, expiry, premium, and written positions are not disclosed.